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Alcohol-soluble flexographic inner printing ink suitable for extrusion composite process and preparation method thereof

An extrusion compounding and alcohol-soluble technology, which is applied in inks, applications, household appliances, etc., can solve problems such as difficult to meet market demand, poor ink transfer, high viscosity of flexographic printing inks, etc., to achieve market prospects and application value , good practicability and creativity, the effect of improving solubility and uniformity

Active Publication Date: 2021-04-23
HUANGSHAN SHINING INK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former is difficult to apply to high-speed printing because of the high viscosity of flexographic printing ink made of PVB resin
The latter is flexographic printing ink made of alcohol-soluble polyurethane resin. Because of the high viscosity of polyurethane, it is easy to cause printing failures such as poor ink transfer and reverse sticking of printed matter during printing. Therefore, it must be used in combination with other resins with higher hardness. In order to improve its printing adaptability, but at the same time, it also leads to the low composite strength of the post-printing process, especially the extrusion composite strength, which can only reach 0.1-0.2N / 15mm, which is difficult to meet the market demand

Method used

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  • Alcohol-soluble flexographic inner printing ink suitable for extrusion composite process and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] An alcohol-soluble flexographic printing ink suitable for extrusion compounding process, comprising the following components:

[0040] 21% alcohol-soluble nitrocellulose resin: 27.1%

[0041] 40% alcohol soluble polyurethane resin: 13%

[0042] Titanium dioxide: 40%

[0043] Polyethylene Wax: 0.5%

[0044] Fumed silica: 0.4%

[0045] Propylene Glycol Ethers: 4%

[0046] n-Propanol: 3%

[0047] Ethanol: 3%

[0048] 50% Modified Dammer Resin: 6%

[0049] Coupling agent: 3%.

[0050] A preparation method of alcohol-soluble flexographic printing ink suitable for extrusion compounding process, the specific steps are as follows:

[0051] S1. prepare a mixed solvent: accurately measure propylene glycol ethers, n-propanol and ethanol, add the two into a stirring tank, stir for 20min with a high-speed disperser at a stirring rate of 2000 r / min and fully mix, and take out part of the mixed solvent;

[0052] S2. Configure resin liquid: add alcohol-soluble nitrocellulose r...

Embodiment 2

[0057] An alcohol-soluble flexographic printing ink suitable for extrusion compounding process, comprising the following components:

[0058] 21% alcohol-soluble nitrocellulose resin: 25.1%

[0059] 40% alcohol soluble polyurethane resin: 13%

[0060] Organic Yellow Pigment: 15%

[0061] Polyethylene Wax: 0.5%

[0062] Fumed silica: 0.4%

[0063] Propylene Glycol Ethers: 13%

[0064] n-Propanol: 12%

[0065] Ethanol: 12%

[0066] 50% Modified Dammer Resin: 6%

[0067] Coupling agent: 3%.

[0068] 2. the alcohol-soluble flexographic printing ink suitable for extrusion compounding process according to claim 1, it is characterized in that: described alcohol-soluble nitrocellulose resin is set to 20-50% alcohol-soluble nitrocellulose resin solution .

[0069] A preparation method of alcohol-soluble flexographic printing ink suitable for extrusion compounding process, the specific steps are as follows:

[0070] S1. prepare a mixed solvent: accurately measure propylene glyco...

Embodiment 3

[0076] An alcohol-soluble flexographic printing ink suitable for extrusion compounding process, characterized in that it comprises the following components:

[0077] 21% alcohol-soluble nitrocellulose resin: 25.1%

[0078] 40% alcohol soluble polyurethane resin: 13%

[0079] Organic red pigment: 15%

[0080] Polyethylene Wax: 0.5%

[0081] Fumed silica: 0.4%

[0082] Propylene glycol ethers: 15%

[0083] n-Propanol: 12%

[0084] Ethanol: 10%

[0085] 50% Modified Dammer Resin: 6%

[0086] Coupling agent: 3%.

[0087] A preparation method of alcohol-soluble flexographic printing ink suitable for extrusion compounding process, the specific steps are as follows:

[0088] S1. prepare a mixed solvent: accurately measure propylene glycol ethers, n-propanol and ethanol, add the two into the stirring cylinder, stir for 35min with a high-speed disperser at a stirring rate of 1800 r / min and fully mix, and take out part of the mixed solvent;

[0089] S2. Configure resin liquid: ...

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Abstract

The invention provides alcohol-soluble flexographic inner printing ink suitable for an extrusion composite process and a preparation method thereof. The ink comprises the following components: 25%-30% of alcohol-soluble nitrocellulose resin, 10%-15% of alcohol-soluble polyurethane resin, 14%-40% of pigment, 0.3%-0.5% of polyethylene wax, 0.4%-1% of fumed silica, 4%-15% of propylene glycol ethers, 3%-15% of n-propanol, 3%-15% of ethanol, 4%-8% of modified dammar resin and 2.5%-4% of a coupling agent. The ink is prepared by grinding alcohol-soluble nitrocellulose, alcohol-soluble polyurethane resin, an organic pigment or inorganic pigment, an alcohol ether solvent, alcohol-soluble modified dammar resin, a coupling agent and the like, the formula is adjusted, the optimal resin type and resin ratio are selected, in the extrusion composite stage, the extrusion composite strength is improved to 1.5 N / 15 mm or above, and the existing market requirements are met.

Description

technical field [0001] The invention relates to the technical field of flexographic extrusion composite printing ink, in particular to an alcohol-soluble flexographic printing ink suitable for extrusion composite technology and a preparation method thereof. Background technique [0002] The printer is one of the output devices of the computer. It is used to print the computer processing results on the relevant media. The printer needs to consume ink during use. Due to the low dust and environmental protection of the pre-dispersed product and the high dispersibility, high transparency, Many advantages of high gloss are pursued by domestic and foreign manufacturers who pursue high-quality pigment products, especially well-known ink and coating companies. [0003] At present, the market's requirements for the environmental protection and safety of surface-printed varnish products have been further improved, and the packaged products have also put forward further requirements fo...

Claims

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Application Information

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IPC IPC(8): C09D11/14C09D11/102C09D11/03
CPCC09D11/14C09D11/102C09D11/03
Inventor 王鑫汪慧程刚潘吉红
Owner HUANGSHAN SHINING INK TECH
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